Wax sweating oven



WAX SWEAT ING OVEN Filed March 25, 1936 3 Sheets-Sheet l Patented Nov. 16, 1937 UNITED STATES PATENT OFFICE WAX SWEATING OVEN Adolf BrGauschemann, Bayonne, N. J. Application March 23, 1936, Serial No. 70,538

2 Claims.

This invention relates to wax sweating ovens and has for the primary object the provision of a device of this character which will be economical to construct and operate and will efficiently treat or refine wax with a more uniform quality and an increased quantity and with the refining cost reduced to a minimum.

A further object of the invention is the provision of a device of this character which will decrease steam consumption and also heat losses, thus effecting a more perfect control of the sweating operation.

The invention will be fully and comprehensively understood from 'a consideration of the following detailed description when read in connection with the accompanying drawings which form part of the application.

In the drawings:

Fig. 1 is a vertical sectional view illustrating a wax sweating oven constructed in accordance with my invention.

Fig. 2 is a fragmentary front elevation illustrating the same.

Fig. 3 is a top plan View illustrating the device.

Fig. 4 is a sectional view taken on the line 4--4 of Fig. 1; and

Fig. 5 is a fragmentary sectional view illustrating the means of supporting a shield and steam heating coil.

Referring in detail to the drawings, the numeral l indicates a supporting frame or structure which includes at spaced intervals tray supports 2 on which are positioned trays 3 to contain wax to be refined by a heating process. The trays 3 are arranged in superimposed relationv and are adapted to be filled by a line run into each tray. The vertical walls of this device are composed of a plurality of hingedly mounted doors 4 normally adapted toassume depending position by gravity and in contact with the vertical walls of the trays so that the spaces between the trays will be com,- pletely enclosed.

Hangersor brackets 5 are secured to the supporting structure I between the trays and support thereon coils 6 and shields 1. The coils are of a continuous type and water will be circulated therethru to heat the atmosphere surrounding the trays of wax sothat the wax may be sweated. The means for supplying the water, which isof course heated, has not beenshown but it is to be understood that this is preferably of an automatically controlled type. The shields 'l are constructed preferably of metal and are suspended in a horizontal position beneath the coils 6. It is the purpose of the shields to protect the solid wax contained within the trays from the direct heat of the coils and said shields are perforated as at 8, which perforations fall in a line with the center between the heating coils so as to set up air currents to heat the solid wax.

A master shaft 9 is journaled in the brackets 10 carried by the supporting structure and the latter also has secured thereto brackets II and I2 supporting a shaft l3 and a drum I4. The ends of the shaft protrude beyond the front and rear of the supporting structure and have secured thereto drums Hi, to which are secured and wound thereon flexible elements I6. The elements l6 are connected to the doors 4 at the front and rear of the supporting structure. The drum I4 is connected to the doors 4 at one end of the supporting structure by a flexible element II which is secured to and wound on the ,drum l4. The shaft 9 has a drum l8 secured thereto and this drum is connected to the doors at the other side of the supporting structure by a flexible element 19. The drum I8 is also connected to the drum l4 by a flexible element 20. The drum I8 is further connected to a drum 2| by a flexible element 22. The drum 2| is secured to the shaft I3. Through the rotation of the shaft 9 in one direction, all of the doors will be swung open and a rotation of the shaft in an opposite direction will permit all doors to move into depending positions against the trays.

A thermostatic element 23 is mounted between the uppermost tray and the tray adjacent thereto and engages a bell crank lever 24 pivotally mounted, as shown at 25, and which is connected to the drum l8 by a flexible element 26. The thermostatic device may readily regulate the position of the doors in accordance with the temperature between the trays. This arrangement prevents overheating or excessive heating of the wax.

The trays, heating coils and shields grouped within the supporting structure, as described, provides a compact arrangement of parts wherein the wax-containing trays are confined within comparatively small areas, thus reducing the amount of heat necessary for the sweating of the wax in the trays, consequently permitting the device to be operated more economically and thereby bring about a more efficient refining of the Wax with a uniform quality. Heretofore it has been the practice to refine the wax by the use of steam circulated thru coils suspended on the walls of the house structure. By the present arrangement water is circulated thru coils suspended directly above the wax-containing trays and by radiation will efficiently refine the solid wax.

It is to be understood that this improvement is capable of extended application and is not confined to the exact showing of the drawings nor to the precise construction described and, therefore, such changes and modifications may be made therein as do not affect the spirit of the invention nor exceed the scope thereof as expressed in the appended claims.

responsive to temperature changes within the sweating device for regulating the position of the doors.

2. A wax sweating device comprising a supporting structure, a plurality of trays mounted in the supporting structure and spaced from each other, heating coils carried by the supporting structure and arranged between the trays, doors hinged to the supporting structure on two opposite sides of said sweating device to depend against the trays and close the spaces on said sides between the trays, thermostatically controlled means responsive to temperature changes within the sweating device for regulating the position of the doors, and perforated shields arranged between the heating coils and the upper faces of the trays.

ADOLF B. GAUSCHEMANN. 

